G The switch has been open for a long time, then closed at t=0. What is the current through the 20 resistor a) immediately after switch is closed? b) after switch is closed a long time? c) What is the time constant for the current decay after the switch is reopened? (15pts)

What is the final velocity of the initial velocity of 25 and -50?

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.

An object in mechanical equilibrium is an object